The last 4 days I have been Crappie fishing 3 times.  Caught limits everyday on minnows in Fish Cribs, Shallow Brush and Weeds.  Even caught some in the deep trees 25+ feet down.  I have always had a theory about the Fall Crappie Bite.  As soon as the shad hatch-lings becomes too big for the Crappie to swallow in the Fall, the Crappie all of the sudden become very vulnerable to a Crappie minnow.  The Crappie are hungry, the shad are too big to swallow and the Crappie minnow looks very tasty.